- Added support for styles to SkinTheme and skin.xml.
- Added app::skin::Style/Rule/BackgroundRule/IconRule/TextRule classes.
- Added app::skin::SkinPart class to refer to one part (BITMAP) of
the skin sheet.
- Renamed app::skin::SkinPart to SkinParts as now SkinPart is a class.
At this moment the button isn't functional because the current frame
position is stored in the sprite (instead of the Editor). In this case,
when the "play" button is pressed, the mini-editor should show other
frames instead of the current one (should play the whole animation).
+ Added support to rotate images of IMAGE_BITMAP type.
+ Added transformation_handle & pivot_handle parts in sheet.png.
+ Added rotation cursors in sheet.png.
+ Added gfx::Transformation class and Document::m_transformation field.
+ Added StandbyState::Decorator and TransformHandles class to draw
transformation handles.
+ Modified PixelsMovement class to support transformation handles.
+ Added new Linear Algebra library with Vector2d class.
